878724427878 has 48 divisors (see below), whose sum is σ = 2077079121936. Its totient is φ = 266268064320.

The previous prime is 878724427853. The next prime is 878724427883.

878724427878 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4909000 + ... + 5084852.

It is an arithmetic number, because the mean of its divisors is an integer number (43272481707).

Almost surely, 2^878724427878 is an apocalyptic number.

878724427878 is an abundant number, since it is smaller than the sum of its proper divisors (1198354694058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

878724427878 is a wasteful number, since it uses less digits than its factorization.

878724427878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201109 (or 201106 counting only the distinct ones).

The product of its digits is 629407744, while the sum is 72.

The spelling of 878724427878 in words is "eight hundred seventy-eight billion, seven hundred twenty-four million, four hundred twenty-seven thousand, eight hundred seventy-eight".